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Area of a Circle

A circular tr...

Question

A circular track is built around a circular cricket ground. The difference between the circumference of the outer circle and the inner circle is 176m.
What is the width of the track?

A

16 m

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B

14 m

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C

34 m

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D

18 m

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E

22 m

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Solution

The correct option is B
14 m

$\begin{matrix} R - r = w i d t h o f t r a c k 2 π R - 2 π r = 176 m (R - r) = 28 m \end{matrix}$

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